The ancient Roman cisterns beneath the palace walls. A surreal walk through a flooded temple. The Green head of the Medusa sits at the bottom of one of the columns. By far one of the coolest places I've ever been to.
Medusa pillar, Basilica Cistern ~ The Basilica Cistern is the largest of several hundred ancient cisterns that lie beneath Istanbul. Before being converted to a cistern, a great Basilica stood in its place, built between the and centuries.